Contacts of the helix formed by residues 429 - 433 (chain B) in PDB entry 4K9N
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with GLY 429 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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428B ASP* 1.3 78.8 - - - +
430B SER* 1.3 64.3 + - - +
432B ASN* 3.2 21.2 + - - +
433B TYR* 3.5 16.8 - - - -
458B TYR* 3.5 29.0 + - - -
478B VAL* 4.4 5.8 - - - -
603B TZD 3.1 13.5 + - - -
45D LEU 5.0 0.2 - - - +
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Residues in contact with SER 430 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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375B GLU* 3.2 42.3 + - - +
377B THR* 5.0 0.5 - - - +
403B LEU* 3.5 23.4 - - - +
404B GLY* 4.3 1.9 + - - -
407B LEU* 6.0 0.9 - - - +
426B ILE* 3.9 4.2 - - - +
427B GLY 3.8 2.5 - - - -
429B GLY* 1.3 73.1 - - - +
431B ALA* 1.3 64.0 + - - +
432B ASN 3.1 1.0 + - - -
433B TYR* 3.3 27.4 + - - +
434B SER 4.6 0.5 + - - -
603B TZD 2.5 29.3 + - - -
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Residues in contact with ALA 431 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
407B LEU* 3.8 12.0 - - + +
426B ILE* 3.6 15.0 - - + +
427B GLY 3.0 16.6 + - - +
428B ASP 4.1 0.9 - - - +
429B GLY 3.2 1.0 - - - -
430B SER* 1.3 77.0 - - - +
432B ASN* 1.3 61.8 + - - +
433B TYR 3.5 0.5 + - - -
434B SER 4.1 0.9 + - - -
435B ILE* 3.4 28.5 + - + +
452B ILE* 4.1 16.2 - - + -
483B PHE* 3.7 27.4 - - + -
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Residues in contact with ASN 432 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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428B ASP 2.9 26.5 + - - -
429B GLY* 3.2 13.6 + - - +
430B SER 3.1 1.4 + - - -
431B ALA* 1.3 78.4 - - - +
433B TYR* 1.3 67.7 + - - +
434B SER 3.2 0.9 + - - -
435B ILE* 3.4 16.6 + - - +
478B VAL* 5.4 0.2 - - - +
481B ILE* 3.5 19.5 - - - +
483B PHE* 4.1 10.3 - - - -
486B LEU* 4.3 0.9 - - - +
45D LEU* 3.8 34.6 - - + +
46D GLN* 4.9 0.2 - - - +
436D SER* 4.1 10.8 + - - -
490D TYR* 2.8 35.7 + - - +
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Residues in contact with TYR 433 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46B GLN* 5.4 1.9 - - - +
48B ALA* 5.4 0.9 - - - +
403B LEU* 3.7 24.2 - - + +
404B GLY* 3.6 19.1 - - - -
429B GLY 3.5 18.4 - - - -
430B SER* 3.3 18.2 + - - +
432B ASN* 1.3 78.9 - - - +
434B SER* 1.3 61.2 + - - +
458B TYR* 3.9 3.8 + + - -
603B TZD 3.3 48.0 + - + +
23D ASN* 2.7 26.3 + - - -
45D LEU 3.5 16.4 - - - -
46D GLN* 3.3 47.0 + - + +
47D GLU* 3.5 16.2 - - - -
77D ASN* 4.1 2.2 - - - +
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il